aboutsummaryrefslogtreecommitdiff
path: root/amforth-6.5/avr8/devices/atmega6490/words/sleep.asm
diff options
context:
space:
mode:
authorDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
commit67d25d837ac55f28a366c0a3b262e439a6e75fc3 (patch)
treedf7715c7724c5935ab87c807f3b8b4ef529315e3 /amforth-6.5/avr8/devices/atmega6490/words/sleep.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/avr8/devices/atmega6490/words/sleep.asm')
-rw-r--r--amforth-6.5/avr8/devices/atmega6490/words/sleep.asm19
1 files changed, 19 insertions, 0 deletions
diff --git a/amforth-6.5/avr8/devices/atmega6490/words/sleep.asm b/amforth-6.5/avr8/devices/atmega6490/words/sleep.asm
new file mode 100644
index 0000000..256249c
--- /dev/null
+++ b/amforth-6.5/avr8/devices/atmega6490/words/sleep.asm
@@ -0,0 +1,19 @@
+; ( mode -- )
+; MCU
+; put the controller into the specified sleep mode
+VE_SLEEP:
+ .dw $ff05
+ .db "sleep", 0
+ .dw VE_HEAD
+ .set VE_HEAD = VE_SLEEP
+XT_SLEEP:
+ .dw PFA_SLEEP
+PFA_SLEEP:
+ andi tosl, 7 ; leave only legal mode bits
+ lsl tosl ; move to correct location (bits 3-1)
+ ori tosl, 1 ; set the SE bit
+ out_ SMCR, tosl ; set the sleep config
+ sleep ; nighty-night
+ out_ SMCR, zerol ; 0 protects against accidental sleeps
+ loadtos ; pop argument from stack
+ jmp_ DO_NEXT